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resource_elasticsearch_index_lifecycle_policy.go
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resource_elasticsearch_index_lifecycle_policy.go
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// Manage index lifecylce policy in Elasticsearch
// API documentation: https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-put-lifecycle.html
// Supported version:
// - v6
// - v7
package es
import (
"encoding/json"
"fmt"
eshandler "github.com/disaster37/es-handler/v8"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
olivere "github.com/olivere/elastic/v7"
log "github.com/sirupsen/logrus"
)
// resourceElasticsearchIndexLifecyclePolicy handle the index lifecycle policy API call
func resourceElasticsearchIndexLifecyclePolicy() *schema.Resource {
return &schema.Resource{
Create: resourceElasticsearchIndexLifecyclePolicyCreate,
Read: resourceElasticsearchIndexLifecyclePolicyRead,
Update: resourceElasticsearchIndexLifecyclePolicyUpdate,
Delete: resourceElasticsearchIndexLifecyclePolicyDelete,
Importer: &schema.ResourceImporter{
StateContext: schema.ImportStatePassthroughContext,
},
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
ForceNew: true,
Required: true,
},
"policy": {
Type: schema.TypeString,
Required: true,
DiffSuppressFunc: func(k, oldValue, newValue string, d *schema.ResourceData) bool {
var err error
if oldValue == "" {
oldValue = "{}"
}
if newValue == "" {
newValue = "{}"
}
oldILM := &olivere.XPackIlmGetLifecycleResponse{}
if err = json.Unmarshal([]byte(oldValue), oldILM); err != nil {
fmt.Printf("[ERR] Error when converting old ILM: %s\ndata: %s", err.Error(), oldValue)
log.Errorf("Error when converting old ILM: %s\ndata: %s", err.Error(), oldValue)
}
newILM := &olivere.XPackIlmGetLifecycleResponse{}
if err = json.Unmarshal([]byte(newValue), newILM); err != nil {
fmt.Printf("[ERR] Error when converting new ILM: %s\ndata: %s", err.Error(), oldValue)
log.Errorf("Error when converting new ILM: %s\ndata: %s", err.Error(), oldValue)
}
diff, err := esHandler.ILMDiff(oldILM, newILM)
if err != nil {
fmt.Printf("[ERR] Error when diff component template: %s", err.Error())
log.Errorf("Error when diff component template: %s", err.Error())
}
return diff == ""
},
},
},
}
}
// resourceElasticsearchIndexLifecyclePolicyCreate create new index lifecycle policy
func resourceElasticsearchIndexLifecyclePolicyCreate(d *schema.ResourceData, meta interface{}) (err error) {
err = createIndexLifecyclePolicy(d, meta)
if err != nil {
return err
}
d.SetId(d.Get("name").(string))
return resourceElasticsearchIndexLifecyclePolicyRead(d, meta)
}
// resourceElasticsearchIndexLifecyclePolicyUpdate update index lifecycle policy
func resourceElasticsearchIndexLifecyclePolicyUpdate(d *schema.ResourceData, meta interface{}) (err error) {
err = createIndexLifecyclePolicy(d, meta)
if err != nil {
return err
}
return resourceElasticsearchIndexLifecyclePolicyRead(d, meta)
}
// resourceElasticsearchIndexLifecyclePolicyRead read index lifecycle policy
func resourceElasticsearchIndexLifecyclePolicyRead(d *schema.ResourceData, meta interface{}) (err error) {
id := d.Id()
client := meta.(eshandler.ElasticsearchHandler)
policy, err := client.ILMGet(id)
if err != nil {
return err
}
if policy == nil {
fmt.Printf("[WARN] Index lifecycle policy %s not found - removing from state", id)
log.Warnf("Index lifecycle policy %s not found - removing from state", id)
d.SetId("")
return nil
}
if err = d.Set("name", id); err != nil {
return err
}
flattenPolicy, err := convertInterfaceToJsonString(policy)
if err != nil {
return err
}
if err = d.Set("policy", flattenPolicy); err != nil {
return err
}
return nil
}
// resourceElasticsearchIndexLifecyclePolicyDelete delete index lifecycle policy
func resourceElasticsearchIndexLifecyclePolicyDelete(d *schema.ResourceData, meta interface{}) (err error) {
id := d.Id()
client := meta.(eshandler.ElasticsearchHandler)
if err = client.ILMDelete(id); err != nil {
return err
}
d.SetId("")
return nil
}
// createIndexLifecyclePolicy create or update index lifecycle policy
func createIndexLifecyclePolicy(d *schema.ResourceData, meta interface{}) (err error) {
name := d.Get("name").(string)
policy := d.Get("policy").(string)
data := &olivere.XPackIlmGetLifecycleResponse{}
if err = json.Unmarshal([]byte(policy), data); err != nil {
return err
}
client := meta.(eshandler.ElasticsearchHandler)
if err = client.ILMUpdate(name, data); err != nil {
return err
}
return nil
}